Automatic vapor check valve



Feb.' 10, 1931. P B DRANE I 1,791,862

AUTOMATIC VAPOR CHECK VALVE Filed March 7. 1930 /V VE /Y 70??.`- PHA/Llp DRAME ATTORNEYl l' PatentediFeb.1o,lp931 l y i n c Y, l' y '1,791,862g I fnlrso l`ST*ATEs 3311.11 n. DnANnoF wIcHI'rA, KANSAS lAurisoiirA'irio vAroal CHECK VALVE Application led'March 7, `1930.- Serial No. 433,948. L My invention relates to an automatic vaair tight by :L .gasketA 3, positionedabetween f j por checkvalve, l v the flange and the said tank'top and being The object of my invention isto providea securely` attachedfbybolts v,orrivetsengaging valve that will function for the relief of vaclin apertures l?,passil`igv lthroughthe flange .-uum 'or compression :and vat the same time and registering with similar' aperturesipa'ss-25.,

maintain-a pressure. 1 I Y Y A'further object of my invention'is to pro-vr that the top of an ordinary tank suchfasjcomvide a valvegravity actuated for therelief monlyused in the Oilfield; is crowned,.con`se of compression and a second valve associated l quently to maintain a perpendicular position 10 therewith to relieve the` Vacuum' strain, the of the body element, a iiange portion is slant- `6o. said valves coacting for their respective puringy y Yarrangedrto @conform to theorown of b poses.v y f the tank top'. f

Y A further object of my inventionV is to `pro- Positioned on theside'ofthe annularfbodyY vide avalve havinga reproof featureassoandv radially extendingtherefrom anduinjte-Vv fing through the tank.` It will be'understood 'A 15 ciated therewith, Aand functioning as a seat grally connected therewith is' an earfi, to 65j-V for .a receptor as a means for conveniently Y vwhich the lid is hingedly connected.; I l testing the gravity of the oilV and-by which i As a iireproofr means to avoidV flames fromf means the top of the tank is protected against entering'the tank by possible ignition'of .the

superfluous oil deposit Yfrom the tank for testvapor fumesthrough theAv valve-, I have pro- 20 ing purposes. l vided annular neck memben,rthe inside -v 7o A still furtherobject of my invention Vis to diameter of which .is greater than the inside provide a .valve .inexpensive to manufacture, diameter of the said body member and having simple'to install, having the desired efficiency an apertured ang'eyG, so that the said memandpreferably made of aluminum. bers may be simultaneously, attached tothel v25 A still further vobject of my inventionisto tank top aspreviouslydescribed for the body 75k provide a governing meansto insure the closmember Y`l. ing of the re screen prior to the closing'of, Positioned on the lower end of thesaid-neck the lid;the closed position of the lid funcmember 5,'isa tongue 6, integrally connected tioning as a lock to avoid opening of the andadapted to engage snugly in an annular se screen. groove in adisk 7, the said diskbeing per- .so These and other objects will' be hereinafter forated.asshown in Figures 2 and-3 and rockmorefully explained reference beinghadjto,- ablyarranged as hereinafterdescribed.

the accompanying 2drawings forming .a part `Extending from one side of the disk, is a ofthe specification and in which like charachub element 8 apertured` to receive a pin 9 f 3 5 ters will apply to like parts in the different rigidly engagingthereon, the said .pinextendss views. ingv upward and Vbeing trunnionedj in they.. Referring to the drawings y Y iange portion of the'neck and body members Fig. 1 is a sideelevation of the'valve. and having a leverl 1Q secured to the upper Fig. 2 is a plan view of Fig. l, parts reend thereof as turning means for the pin.

,i0 moved for convenience of illustration. l As a meansfor tensioning the disk to snug 90 Fig. 3 is an inverted plan view of the screen. engagement vwith, the v`tongue of the neck Fig. 4 is an enlarged sectional view diametmember, a springjll is lplaced on ,the upper rically taken. end portion of the `pin and adapted kto .tension Fig. 5 is a plan'view of the lid with the v between the flange and the levers as raising 4 5. hood removed. means for the pin and thedisk attached there- 95 Myinvention'herein disclosed consists of to; Vto `rock the said disk from engagement an annular body member 1, having a iangev with the neck toapossibleposition shown by l A, integrall connectedthereto, by `which l dotted linesD, in Figure 2, I rst'open the- Ineans the said member is iirmly attached to lid then by pushing downward ,on the lever -59 the top of an oiltank 2, the jointbeing madev for thev purlgnosc ofdisengagingthe groove' 10o v and tongue elements, the said disk is free to n rock to one side as accessible means through Y portion 1, byan 'extension`10, as rocked to the neck into the tank and when rocked from engagement, the lever will function as means to prevent the lid .from closing on the body the position-showng-by dotted -linesgDC` lbeI h'adl through theH said plates;

radially extending from the hub 8,the purpose of which is to properly support -the'opL positely disposed portion of thedisk from the said hub.

Placed on the upper sideof the saiddisk:

7, is a perforated disk 13, and between said disks ispositioned a wovenwire fabric mem!y ber 13; the said member covering the entire area ofthe ydisks and ybeingy woven. offine copper wire, by which' meanscirculation may fabriciwill? function as a fire proof means to avoid the flames passing 'therethrough should combustion' take place on the outer side'with reference to the position oflthevalve on the tank. W

The cover for theA body portion l consists of a housing 14 having a gasketl, imbedded in the peripheral edgethereof as an air tight closing means for the 'joint'E, betweenk the housing and the body member. Y.

Asa means to allow; for varying thickness Y of the gasket when the lid uniformly rests on the bodyvmembenl haveprovided an elonv gated slot 16,- for the hinge engagement, by

V at F, at the otherend ofthe ductis a check ist which means the'said lid is free to raise'a'nd lowerasfthe gasket may require.

Y Positioned in the lid is a duct 17 formedby a wall 18, having a mouth as 'an inlet as shown valve element consistingof a disk 19'a'dapted to seat in an opening 2O as closing means therefor; the said disk having a hollow stem 21, concentri'cally tending therefrom'. Y

As a means to add weight to the disk member the stemthereofbeing hollowf as a-t- 21 is means to receive molten lead y and being filled therewith toa consistency required.

The stem of the disk'isl adapted to slidably engage in an apertured guide 22, the said guidebeing supported by'a plurality of arms' 23, radially extending therefrom and connecting to the inside peripheral wall of the seat v To remove the disk and reseat the same, I have provided an opening 24, in arial alignment therewith through which the said disk the same thereto in an airtight manner.

Positioned on the lid is a hood 26, functioning as a'weather proof covering and being spaced therefrom by ay plurality of leg mem'- b'ers 27 integrally connected and adapted to positioned and laxially eX- seat on an annular shoulder as shown at Gr, in Figure 4 and secured thereto by pins 28, respectively.

Such modifications may be employed as lie within the scope of the appended claims ,hav-

ing fully described'my invention what l ,claim *i ,p as vnew-:and

Positioned on the under side of the said:` disk 7, is a plurality of web members ,12,v

desire to secure by -Letters Patentis: i

l. In an automatic vapor checkk valve, a

Vvalve mechanism ofthe class described com! the hood being spaced from the .lid'but 'se- .cured thereto. .y i the, wire 2. Vln an automaticicheck valve, ina lireproof feature for a valveof the class de-lv Y scribed, the'val-ve having an annular .body and a cover hingedly connected, an annular fneck' portion in registry with, the annular body portion, the body and the neck portion: being connected to the top of `a tank thatcis intermediately positioned thereto, a screen pivot#- ally connected toth'efneck and adapted to having a spring as tensioning Imeans for close engagement of the screen tol the neck' member rock' to' and from engagement-with vthe same, a pin and a lever to rock the'screenf'the pin when the screen. is rockedto Aengagement therewith, means ontheflever` to prevent' disenga-ging the screen when the lid is closed'and I the sainel 'said means to'fprevent closingvof the coveruntil thescreenis closed', Y.

3'. VIn an automatic check valve,'in a fire'- kproof screen for a valve mechanismfof the class described, .the valve Aconsisting of a body portion havinga flang'eas a connecting means to tank, and a lid havinga duct'there: f in,^a valve for the duet, means to add weight to the disk of the valve, hood covering for the outer end of the duct, a neck member havingv 'a flange by whichV means the'neck isattached to a tankopposite the body member and iny registry' therewith, ajscree'n member" pivotally connected to one side vof ,the neck so that the screen willV rock transversely to" the neck as opening and 'closing means there-KVV for, the screen' "consisting of ai, pair of perforated disks and a finely woven wire fabric positioned between the disks asfsup-g vporting means therefor, the perforations of the diskmem'bers being in registry so (that circulation may be had therethrough, ay pin by which the screen is pivotally mounted and' rocked, a lever on the opposite end of the spring as rocking means therefor,` and a spring betweenthelever the flange'of the body portion, the spring to ,cause tight engagement of the screen to the-end: of the` n 1,791,862 f y face ofthe screen `and an ennulartongue on the end of the neck member by which means :the joint between the screen and Athe neck member is sealed all as and for the purpose Y 5 speced. L v

In testimony whereof I ax my signature.

v *Y PHILIP B.' DRNE. 

